中文

部分不可区分玻色子的实际器件与理想玻色采样间迹距离的确界

量子物理 2015-07-08 v4 统计力学 计算复杂性

摘要

我们研究了具有任意混合输入态中仅部分不可区分玻色子的实验性酉玻色网络(特别是玻色采样的实验实现)与理想玻色网络的接近程度,其中两个网络接近程度的度量是输出概率分布之间的迹距离。我们证明了到理想玻色网络的迹距离的上界,以及输出构型概率之差的界。此外,在物理上透明的可区分性猜想成立的前提下,该迹距离上界是紧的。对于小的可区分性误差,我们证明具有NN个玻色子的实际器件在玻色内部态失配的O(N1)O(N^{-1})标度下,与理想玻色采样处于常值迹距离。

关键词

引用

@article{arxiv.1501.00850,
  title  = {Tight bound on trace distance between a realistic device with partially indistinguishable bosons and the ideal Boson Sampling},
  author = {V. S. Shchesnovich},
  journal= {arXiv preprint arXiv:1501.00850},
  year   = {2015}
}

备注

8 pages, no figures. Small changes from version 3: title and Abstract revised. [This submission, since version 3, is restricted to identical detectors. Arbitrary detectors were treated in version 1. Those results remain valid, but the derivation contains a flaw. Corrected version 1 will be resubmitted as a separate article generalizing this one.]